patches/kernel/0011-drivers-firmware-Don-t-mark-as-busy-the-simple-frame.patch

   1 From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
   2 From: Javier Martinez Canillas <javierm@redhat.com>
   3 Date: Tue, 25 Jan 2022 10:12:19 +0100
   4 Subject: [PATCH] drivers/firmware: Don't mark as busy the simple-framebuffer
   5  IO resource
   6
   7 The sysfb_create_simplefb() function requests a IO memory resource for the
   8 simple-framebuffer platform device, but it also marks it as busy which can
   9 lead to drivers requesting the same memory resource to fail.
  10
  11 Let's drop the IORESOURCE_BUSY flag and let drivers to request it as busy
  12 instead.
  13
  14 Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
  15 Reviewed-by: Zack Rusin <zackr@vmware.com>
  16 Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
  17 Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
  18 ---
  19  drivers/firmware/sysfb_simplefb.c | 2 +-
  20  1 file changed, 1 insertion(+), 1 deletion(-)
  21
  22 diff --git a/drivers/firmware/sysfb_simplefb.c b/drivers/firmware/sysfb_simplefb.c
  23 index 303a491e520d..76c4abc42a30 100644
  24 --- a/drivers/firmware/sysfb_simplefb.c
  25 +++ b/drivers/firmware/sysfb_simplefb.c
  26 @@ -99,7 +99,7 @@ __init int sysfb_create_simplefb(const struct screen_info *si,
  27
  28         /* setup IORESOURCE_MEM as framebuffer memory */
  29         memset(&res, 0, sizeof(res));
  30 -       res.flags = IORESOURCE_MEM | IORESOURCE_BUSY;
  31 +       res.flags = IORESOURCE_MEM;
  32         res.name = simplefb_resname;
  33         res.start = base;
  34         res.end = res.start + length - 1;